:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --text: #172033;
  --muted: #667085;
  --primary: #1458d4;
  --primary-dark: #0f43a3;
  --border: #dfe5ee;
  --soft: #edf4ff;
  --shadow: 0 18px 50px rgba(23, 32, 51, 0.07);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { font-size: 20px; font-weight: 800; color: var(--primary); }
.nav nav { display: flex; gap: 22px; color: var(--muted); font-size: 14px; }
.nav a:hover, .footer-links a:hover { color: var(--primary); }

.hero {
  padding: 96px 0 88px;
  background:
    radial-gradient(circle at 15% 0%, #dceaff 0, transparent 35%),
    linear-gradient(180deg, #ffffff 0%, #f5f7fa 100%);
}
.hero-inner { max-width: 850px; }
.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: .11em;
}
h1 { margin: 0 0 20px; font-size: clamp(36px, 6vw, 58px); line-height: 1.18; }
h2 { margin: 0 0 14px; font-size: 30px; line-height: 1.3; }
h3 { margin: 0 0 10px; font-size: 21px; }
.lead { max-width: 760px; margin: 0; color: var(--muted); font-size: 19px; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 10px;
  font-weight: 700;
}
.button.primary { background: var(--primary); color: #fff; }
.button.primary:hover { background: var(--primary-dark); }
.button.secondary { background: var(--soft); color: var(--primary); }

.section { padding: 58px 0; }
.section-heading { margin-bottom: 22px; }
.about-card,
.service-card,
.notice-card,
.page,
.contact-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.about-card { padding: 30px; }
.about-card p { margin: 0; color: #3d4658; }
.about-card p + p { margin-top: 14px; }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.service-card { padding: 25px; }
.service-card p { margin: 0; color: var(--muted); }
.service-index { display: inline-block; margin-bottom: 22px; color: var(--primary); font-weight: 800; }

.notice-card {
  display: grid;
  grid-template-columns: .55fr 1.45fr;
  gap: 30px;
  align-items: center;
  padding: 30px;
}
.notice-card p:last-child { margin: 0; color: var(--muted); }

.contact-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.contact-strip p { margin-bottom: 0; color: var(--muted); }
.email-link {
  flex: 0 0 auto;
  padding: 16px 22px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
}

.page { margin-top: 44px; margin-bottom: 44px; padding: 36px; }
.page h1 { font-size: 40px; }
.page h2 { margin-top: 28px; font-size: 22px; }
.page p { color: #4c5568; }
.page a { color: var(--primary); }
.contact-card { margin-top: 28px; overflow: hidden; }
.contact-card > div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.contact-card > div:last-child { border-bottom: 0; }
.contact-card span { color: var(--muted); }

.site-footer {
  margin-top: 28px;
  padding: 38px 0;
  background: #fff;
  border-top: 1px solid var(--border);
  color: var(--muted);
}
.footer-content { display: flex; justify-content: space-between; gap: 30px; }
.footer-content p { margin: 7px 0 0; }
.footer-links { display: grid; align-content: start; justify-items: end; gap: 7px; }

@media (max-width: 820px) {
  .service-grid { grid-template-columns: 1fr; }
  .notice-card { grid-template-columns: 1fr; }
  .contact-strip, .footer-content { flex-direction: column; align-items: flex-start; }
  .footer-links { justify-items: start; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 24px, 1080px); }
  .nav { align-items: flex-start; padding: 12px 0; }
  .nav nav { flex-wrap: wrap; gap: 10px 14px; }
  .hero { padding: 68px 0 62px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .page { padding: 24px; }
  .contact-card > div { grid-template-columns: 1fr; gap: 4px; }
}